Swivel connection



A. GUEST CTION 'SWIVEL CONNE Filed NOV. 29, 1926 WWWW mm INVENTORATTORNEY WITNESS:

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Patented May 14, 1929. a

ANDREW GUEST, F REGINA, SASKATCHEWAN, CANADA.

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Application filed November 29, 1926. Serial No. 151,550.

This invention relates to a swivel connection for connecting theconductor wires to an electric appliance, plug, so that the wlres willnotbe twisted, and thus injured, by the movement of the appliance intheuse of the same.

Another object of the invention is to provide a yieldable connectionbetween the SWIV- eled part and the plug so that the contacts betweenthe plug and the swiveled partare kept in engagement through means ofspring pressure.

' This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to theaccompanying-drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which V Figure1 is a view partly in section, showing the invention appli'edto a plug.

Figure 2 is a section on line 2-2 of Figure 1..

Figure 3 is a section ,on line 3+3 of Figure 1.

Figure l is a section on line ure 1.

In these drawings, A indicates the usual plug which is provided with thesockets 1 and 2 for receiving the terminals on an electric an appliance,such as an iron, percolator, etc.

In carrying out my invention, I place a ring 3 of conducting materialonthetop or outer end of the plug and I connect this ring by theconductor 4t withthe socket member 2. A boss 5is placed in the center ofthe plug, with one end extending through the upper or outer end thereofand the flange of this boss is connected by the conductor 6 with thesocket member 1. It is understood that the members 3 and 5 are insulatedfrom each other by the insulating material from which the plug isformed. A body 7, formed of non-conducting material, has a ring 8 ofconducting material in its exposed lower or outer end and this ring isadapted to engage the ring 3 when the body is placed on the top of theplug. A boss9, of conducting material, is embedded in the center of thelower or outer end of the body 7 and this boss is adapted to engagethe'boss 5, the body having a central recess in its outer end forreceiving the projecting part of the boss 5 in the plug A. The boss 9 isprovided with a lateral extension 10 which extends through one wall ofthe body 7, where it is connected to a conductor 11 and the ring 8 isprovided with an extension 12 which ex- .tends through one wall of thebody, and this extension is connected with the conductor 11. A rod 13 isconnected with the plug A and passes through the holes in the bosses 5and 9 and through the body 7 and a spring 14 is held on the rod by thenuts 15, the spring being partly located in a socket 16 formed in theupper 'or inner end of the body 7. This rod and its spring act to holdthe body 7 on the plug, with the sp'ring pressing the body against theplug and thus firmly holding the contact rings and plugs in engagementwith each other. A casing17 is screwed to the lower end of the body andencloses the parts associated with the body and has a'large opening 18in its upper end through which the conductors 11 and 11' pass.

From the foregoing, it will be seen that current will passdown throughone of the conductors, through the ring 8 into the ring 3 and will passfrom the said ring 3 through the conductor 4 to the socket 2 and then,after passing through the appliance, will return through the socket 1,conductor 6 to plug 5 and through the plug 9, its extension 10, to thereturn conductor 11. As willbe seen, the body 7 and its casing canrotate on the plug without breaking the circuit, so that the appliancecan be moved without twisting the conductor wires 11 and 11 and damagingthe same.

It is thought from the foregoing description that the advantages andnovel features of my'invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and "arrangement of the several parts, providedthat such changes fall within the scope of the 'appendedclaims.

What I claim is 1. In combination with an appliance plug and its socketmember, a central contact at the top of the plug and a ring-shapedcontact at the top of the plug surrounding the central contact, eachcontact being connected with asocketmember,a body of insulating ma 1terial,-a contact ring at one end of the body for engaging the contactring of the plug, a central contact in the body for engaging the centralcontact of the plug, conductors connected with the contacts of the bodyand a pivot pin for connecting the body with the plug, said pin passing'hrough the central contacts;

2. In combination with an appliance plug and its socket member; acentral contact at 5 the top of the plug and a. ring-shaped .con-

tact at the top of the plug surrounding the central contact, eachcontact-being connected with a socket member, a body of insulatinmaterial, a; contact ring at one end of the bed? 10 for engaging thecontact ring of the plug, a

central contact in the body for engaging the central contact of theplug, conductors connected witlrthe contacts of the body, a pivot pinfor connecting the body. with the plug,

15 said pin passing through the central contacts and a casing detachablyconnected with the body and enclosing the parts.

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the top of the plug surrounding the central contact, each contactvbeingconnected with a socket member, a body of insulating material, a contactring at one end of the body for engaging the contact ring of the plug, acentral contact in the body for engaging the central contact of theplug, conductors connected with the contacts of the body, a pivot pinfor connecting the body with the plug, said pin passing through thecentral contacts and spring means associated With the pivot pin forpress ing the body against the plug.

I In testimony whereof I afiix my signature.

ANDREW GUEST.

